I've found that it's possible to export models created in Blender, mess with then in Inkscape, and load then into the software for my silhouette cutter thing.

Blender has alternative rendering engines... one called freestyle lets you do line drawings which can be exported as SVG files... then it's just a case of plodding through a few steps and your ready for cutting.

Tests on paper worked, just waiting for some thin plastic card and I can cut some windows for a proper go.

Inkscape can also be used to produce pictures for making etched brass and laser cutting.

So for me ( and anyone else who knows blender ) it opens up a lot of options other than 3d printing for making stuff.

In a bit more detail... render in blender with an orthographic projection and freestyle enabled

windows.jpg (26.37 KiB) Viewed 2191 times

that creates an .SVG which imports into Inkscape...

inkscape.png (24.43 KiB) Viewed 2191 times

and a small amount of fiddling, saving as .Dxf and opening in Silhouette...

cutter.png (28.58 KiB) Viewed 2191 times

or with a bit more work in inkscape... a picture that can ( hopefully ) be used to create etched brass...

points.png (14.29 KiB) Viewed 2191 times

and as a bonus feature, you can do plans of 3d models... this is for a Z scale project but you get the idea...